code: def _escape(s):
      return s.replace("_", _UNDERSCORE_REPLACEMENT)
  
imports: from __future__ import unicode_literals
  import collections
  from absl import logging
  from tensorflow_datasets.core.deprecated.text import text_encoder
  from tensorflow_datasets.core.utils.lazy_imports_utils import tensorflow
label_desc: Use image node_id 5 for calling a global function with example usage: _escape(s) and returns: s